It’s very simple:
You take the bag of pigment and your empty jar!
You peel of the sticker and place it on the lid. After that you shake the pigment down into a corner of the bag and gently shake it out so it fits in the empty jar.
This is the finished jar with the description on top of it. I also made a swatch so you can see the pigment inside! Voila you just do that with all the pigments you have bought!
Have fun! 😉